unexpected error

coupt24

I was following the brackeys 3D game tutorial, but after saving the project and coming back to it the next day and I was greeted with a error that said "Assets\scripts\PlayerMovement.cs(17,10): error CS0111: Type 'PlayerMovement' already defines a member called 'FixedUpdate' with the same parameter types"

The picture I linked above was the player movement script with the "error" , so if someone can help me that would be greatly apricated.